From the original post "Bottom line the automobile industry tried to keep the software and password proprietary in the beginning and it worked until people like all of us (small businesses, independents, customers, etc) stood up and said 'enough'."

That is false - Like JKRIZIZKE mentioned above the only reason that OBDBII was instituted was to appease the EPA and by default California. They find it much easier to screw over the millions of car/truck owners who don't contribute $$$ to their re-election campaigns than to crack down on power plant emissions trading and other gross polluters.

ISZ